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<section id="module-builtins">
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<span id="builtins-built-in-objects"></span><h1><code class="xref py py-mod docutils literal notranslate"><span class="pre">builtins</span></code> — Built-in objects<a class="headerlink" href="#module-builtins" title="Link to this heading">¶</a></h1>
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<p>This module provides direct access to all ‘built-in’ identifiers of Python; for
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example, <code class="docutils literal notranslate"><span class="pre">builtins.open</span></code> is the full name for the built-in function <a class="reference internal" href="functions.html#open" title="open"><code class="xref py py-func docutils literal notranslate"><span class="pre">open()</span></code></a>.</p>
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<a class="reference internal" href="functions.html#open" title="open"><code class="xref py py-func docutils literal notranslate"><span class="pre">open()</span></code></a>, this module can be used directly:</p>
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<div class="highlight-python3 notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span><span class="w"> </span><span class="nn">builtins</span>
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<span class="k">def</span><span class="w"> </span><span class="nf">open</span><span class="p">(</span><span class="n">path</span><span class="p">):</span>
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<span class="n">f</span> <span class="o">=</span> <span class="n">builtins</span><span class="o">.</span><span class="n">open</span><span class="p">(</span><span class="n">path</span><span class="p">,</span> <span class="s1">'r'</span><span class="p">)</span>
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<span class="k">class</span><span class="w"> </span><span class="nc">UpperCaser</span><span class="p">:</span>
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<span class="w"> </span><span class="sd">'''Wrapper around a file that converts output to uppercase.'''</span>
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<span class="k">def</span><span class="w"> </span><span class="nf">read</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">count</span><span class="o">=-</span><span class="mi">1</span><span class="p">):</span>
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<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_f</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="n">count</span><span class="p">)</span><span class="o">.</span><span class="n">upper</span><span class="p">()</span>
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<span class="c1"># ...</span>
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</pre></div>
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<p>As an implementation detail, most modules have the name <code class="docutils literal notranslate"><span class="pre">__builtins__</span></code> made
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either this module or the value of this module’s <a class="reference internal" href="../reference/datamodel.html#object.__dict__" title="object.__dict__"><code class="xref py py-attr docutils literal notranslate"><span class="pre">__dict__</span></code></a> attribute.
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